<?php

/**********************************************************************
Copyright (C) FrontAccounting, LLC.
Released under the terms of the GNU General Public License, GPL, 
as published by the Free Software Foundation, either version 3 
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
See the License here <http://www.gnu.org/licenses/gpl-3.0.html>.
***********************************************************************/
include_once ($path_to_root . "/purchasing/includes/db/invoice_items_db.inc");

//--------------------------------------------------------------------------------------------------

function read_supplier_details_to_trans(&$supp_trans, $supplier_id)
{
    $sql = "SELECT supp.supp_name, terms.terms, terms.days_before_due,
		terms.day_in_following_month, supp.tax_included,
		supp.tax_group_id, tax_group.name AS tax_group_name,
		supp.credit_limit - Sum(IFNULL(IF(trans.type=" . ST_SUPPCREDIT . ", -1, 1) 
			* (ov_amount + ov_gst + ov_discount),0)) as cur_credit
		FROM " . TB_PREF . "suppliers supp 
			LEFT JOIN " . TB_PREF .
        "supp_trans trans ON supp.supplier_id = trans.supplier_id, " . TB_PREF .
        "payment_terms terms, " . TB_PREF . "tax_groups tax_group
		WHERE supp.tax_group_id = tax_group.id
		AND supp.payment_terms=terms.terms_indicator
		AND supp.supplier_id = " . db_escape($supplier_id) .
        " GROUP BY supp.supp_name";

    $result = db_query($sql, "The supplier record selected: " . $supplier_id .
        " cannot be retrieved");

    $myrow = db_fetch($result);

    $supp_trans->supplier_id = $supplier_id;
    $supp_trans->tax_included = $myrow['tax_included'];
    $supp_trans->supplier_name = $myrow['supp_name'];
    $supp_trans->terms = array(
        'description' => $myrow['terms'],
        'days_before_due' => $myrow['days_before_due'],
        'day_in_following_month' => $myrow['day_in_following_month']);

    $supp_trans->credit = $myrow['cur_credit'];

    $supp_trans->tax_description = $myrow['tax_group_name'];
    $supp_trans->tax_group_id = $myrow['tax_group_id'];

    if ($supp_trans->tran_date == "")
    {
        $supp_trans->tran_date = Today();
        if (!is_date_in_fiscalyear($supp_trans->tran_date))
            $supp_trans->tran_date = end_fiscalyear();
    }
    //if ($supp_trans->due_date=="") {
    //	get_duedate_from_terms($supp_trans);
    //}
    get_duedate_from_terms($supp_trans);
}

//--------------------------------------------------------------------------------------------------

function update_supp_received_items_for_invoice($id, $po_detail_item, $qty_invoiced,
    $chg_price = null)
{
    if ($chg_price != null)
    {
        $sql = "SELECT act_price, unit_price FROM " . TB_PREF .
            "purch_order_details WHERE
			po_detail_item = " . db_escape($po_detail_item);
        $result = db_query($sql,
            "The old actual price of the purchase order line could not be retrieved");
        $row = db_fetch_row($result);
        $ret = $row[0];

        $unit_price = $row[1]; //Added by Rasmus

        $sql = "SELECT delivery_date FROM " . TB_PREF . "grn_batch," . TB_PREF .
            "grn_items WHERE
			" . TB_PREF . "grn_batch.id = " . TB_PREF . "grn_items.grn_batch_id AND " .
            TB_PREF . "grn_items.id=" . db_escape($id);
        $result = db_query($sql,
            "The old delivery date from the received record cout not be retrieved");
        $row = db_fetch_row($result);
        $date = $row[0];
    } else
    {
        $ret = 0;
        $date = "";
        $unit_price = 0; // Added by Rasmus
    }
    $sql = "UPDATE " . TB_PREF . "purch_order_details
		SET qty_invoiced = qty_invoiced + " . db_escape($qty_invoiced);

    if ($chg_price != null)
        $sql .= " , act_price = " . db_escape($chg_price);

    $sql .= " WHERE po_detail_item = " . db_escape($po_detail_item);
    db_query($sql, "The quantity invoiced of the purchase order line could not be updated");

    $sql = "UPDATE " . TB_PREF . "grn_items
        SET quantity_inv = quantity_inv + " . db_escape($qty_invoiced) . "
        WHERE id = " . db_escape($id);
    db_query($sql, "The quantity invoiced off the items received record could not be updated");
    return array(
        $ret,
        $date,
        $unit_price);
}

function get_diff_in_home_currency($supplier, $old_date, $date, $amount1, $amount2)
{
    $dec = user_price_dec();
    price_decimal_format($amount2, $dec);
    $currency = get_supplier_currency($supplier);
    $ex_rate = get_exchange_rate_to_home_currency($currency, $old_date);
    $amount1 = $amount1 / $ex_rate;
    $ex_rate = get_exchange_rate_to_home_currency($currency, $date);
    $amount2 = $amount2 / $ex_rate;
    $diff = $amount2 - $amount1;
    //return round2($diff, $dec);
    return $diff;
}
//----------------------------------------------------------------------------------------

function update_inv_order_no($order_no,$inv_order_no)
{
    $sql = "update purch_orders set inv_order_no = ".db_escape($inv_order_no).
    " where order_no = ".db_escape($order_no);
    db_query($sql,"Tidak bisa membuat link order dan invoice");
}

function add_supp_invoice($supp_trans, $invoice_no = 0)
    // do not receive as ref because we change locally
{
    global $Refs;

    //$company_currency = get_company_currency();
    /*Start an sql transaction */
    begin_transaction();
    hook_db_prewrite($supp_trans, $supp_trans->trans_type);
    $tax_total = 0;
    $taxes = $supp_trans->get_taxes($supp_trans->tax_group_id);

    foreach ($taxes as $n => $taxitem)
    {
        $taxes[$n]['Value'] = round2($taxitem['Value'], user_price_dec());
        $tax_total += $taxes[$n]['Value'];
    }

    $invoice_items_total = $supp_trans->get_items_total();
    //	$invoice_items_total = $supp_trans->get_total_taxfree($supp_trans->tax_group_id);

    if ($supp_trans->tax_included == 0)
    {
        $item_added_tax = $tax_total;
    } else
    {
        $item_added_tax = 0;

    }

    $trans_type = $supp_trans->trans_type;

    if ($trans_type == ST_SUPPCREDIT)
    {
        // let's negate everything because it's a credit note
        $invoice_items_total = -$invoice_items_total;
        $tax_total = -$tax_total;
        $supp_trans->ov_discount = -$supp_trans->ov_discount; // this isn't used at all...
        $item_added_tax = -$item_added_tax;
    }

    $date_ = $supp_trans->tran_date;
    $ex_rate = get_exchange_rate_from_home_currency(get_supplier_currency($supp_trans->
        supplier_id), $date_);

    /*First insert the invoice into the supp_trans table*/
    $invoice_id = write_supp_trans($trans_type, 0, $supp_trans->supplier_id, $date_,
        $supp_trans->due_date, $supp_trans->reference, $supp_trans->supp_reference, $invoice_items_total,
        $item_added_tax, $supp_trans->ov_discount, "", 0, $supp_trans->tax_included);

    $total = 0;
    /* Now the control account */

    $supplier_accounts = get_supplier_accounts($supp_trans->supplier_id);


    // TODO: ini kas belum di setor musti diganti kas sesuai bank id
    /////////////////////////////////////////
    //$total += add_gl_trans_supplier($trans_type, $invoice_id, $date_, $supplier_accounts["payable_account"], 0, 0,
    //		-($invoice_items_total +  $item_added_tax + $supp_trans->ov_discount),
    //		$supp_trans->supplier_id,
    //		"The general ledger transaction for the control total could not be added");
    //////////////////////////////////////////
    

    foreach ($supp_trans->gl_codes as $entered_gl_code)
    {

        /*GL Items are straight forward - just do the debit postings to the GL accounts specified -
        the credit is to creditors control act  done later for the total invoice value + tax*/

        if ($trans_type == ST_SUPPCREDIT)
            $entered_gl_code->amount = -$entered_gl_code->amount;

        $memo_ = $entered_gl_code->memo_;
        $total += add_gl_trans_supplier($trans_type, $invoice_id, $date_, $entered_gl_code->
            gl_code, $entered_gl_code->gl_dim, $entered_gl_code->gl_dim2, $entered_gl_code->
            amount, $supp_trans->supplier_id, "", 0, $memo_);

        add_supp_invoice_gl_item($trans_type, $invoice_id, $entered_gl_code->gl_code, $entered_gl_code->
            amount, $memo_);

        // store tax details if the gl account is a tax account
        if ($trans_type == ST_SUPPCREDIT)
            $entered_gl_code->amount = -$entered_gl_code->amount;
        add_gl_tax_details($entered_gl_code->gl_code, $trans_type, $invoice_id, $entered_gl_code->
            amount, $ex_rate, $date_, $supp_trans->supp_reference, $supp_trans->
            tax_included);
    }


    $clearing_act = get_company_pref('grn_clearing_act');
    foreach ($supp_trans->grn_items as $line_no => $entered_grn)
    {

        if ($trans_type == ST_SUPPCREDIT)
        {
            $entered_grn->this_quantity_inv = -$entered_grn->this_quantity_inv;
            set_grn_item_credited($entered_grn, $supp_trans->supplier_id, $invoice_id, $date_);
        }
        $line_taxfree = $entered_grn->taxfree_charge_price($supp_trans->tax_group_id);
        $line_tax = $entered_grn->full_charge_price($supp_trans->tax_group_id) - $line_taxfree;
        $stock_gl_code = get_stock_gl_code($entered_grn->item_code);

        if ($trans_type == ST_SUPPCREDIT)
        {
            $iv_act = (is_inventory_item($entered_grn->item_code) ? $stock_gl_code["inventory_account"] :
                ($supplier_accounts["purchase_account"] ? $supplier_accounts["purchase_account"] :
                $stock_gl_code["cogs_account"]));
            $total += add_gl_trans_supplier($trans_type, $invoice_id, $date_, $iv_act, $stock_gl_code['dimension_id'],
                $stock_gl_code['dimension2_id'], $entered_grn->this_quantity_inv * $line_taxfree,
                $supp_trans->supplier_id);
        } else
        {
            // -------------- if price changed since po received. 16 Aug 2008 Joe Hunt

            // TODO: iv_act harusnya account beban per item
            ////////////////////////
            //$iv_act = is_inventory_item($entered_grn->item_code) ? ($clearing_act ? $clearing_act : $stock_gl_code["inventory_account"]) :
            //	($supplier_accounts["purchase_account"] ? $supplier_accounts["purchase_account"] : $stock_gl_code["cogs_account"]);
            ///////////////////////

            $iv_act = $entered_grn->kode_beban;

            $old = update_supp_received_items_for_invoice($entered_grn->id, $entered_grn->
                po_detail_item, $entered_grn->this_quantity_inv, $entered_grn->chg_price);
            // Since the standard cost is always calculated on basis of the po unit_price,
            // this is also the price that should be the base of calculating the price diff.
            // In cases where there is two different po invoices on the same delivery with different unit prices this will not work either

            //$old_price = $old[0];

            $old_price = $old[2];
            // adjust for tax included.
            $old_price = get_tax_free_price_for_item($entered_grn->item_code, $old_price, $supp_trans->
                tax_group_id, $entered_grn->tax_included);

            /*
            If statement is removed. Should always check for deliveries nomatter if there has been a price change. 
            */
            //if ($old_price != $line_taxfree) // price-change, so update
            //{
            //$diff = $line_taxfree - $old_price;
            $old_date = sql2date($old[1]);
            if (!is_inventory_item($entered_grn->item_code))
                $total += add_gl_trans_supplier($trans_type, $invoice_id, $date_, $iv_act, $stock_gl_code['dimension_id'],
                    $stock_gl_code['dimension2_id'], $entered_grn->this_quantity_inv * $line_taxfree,
                    $supp_trans->supplier_id);
            else
            {
                $currency = get_supplier_currency($supp_trans->supplier_id);
                $ex_rate = get_exchange_rate_from_home_currency($currency, $old_date);

                // TODO: sesuai beban item line
                //////////////////////////
                $total += add_gl_trans_supplier($trans_type, $invoice_id, $date_, $iv_act, $stock_gl_code['dimension_id'],
                    $stock_gl_code['dimension2_id'], $entered_grn->this_quantity_inv * $old_price, $supp_trans->
                    supplier_id, "", $ex_rate);
                ///////////////////////////

                $diff = get_diff_in_home_currency($supp_trans->supplier_id, $old_date, $date_, $old_price,
                    $line_taxfree);

                // always return due to change in currency.
                /*$mat_cost = update_average_material_cost(null, $entered_grn->item_code,
                $diff, $entered_grn->this_quantity_inv, $old_date, true); */
                $mat_cost = update_average_material_cost(null, $entered_grn->item_code, $diff, $entered_grn->
                    this_quantity_inv, null, true);

                //Add GL transaction for GRN Provision in case of difference
                if (($diff * $entered_grn->this_quantity_inv) != 0)
                {
                    $diff_amt = $diff * $entered_grn->this_quantity_inv;
                    $total += add_gl_trans($trans_type, $invoice_id, $date_, $stock_gl_code["inventory_account"],
                        $stock_gl_code['dimension_id'], $stock_gl_code['dimension2_id'], 'GRN Provision',
                        $diff_amt, null, null, null,
                        "The general ledger transaction could not be added for the GRN of the inventory item");

                    //Chaitanya
                    //If QOH is 0 or negative then update_average_material_cost will be skipped
                    //Thus difference in PO and Supp Invoice should be handled separately

                    $qoh = get_qoh_on_date($entered_grn->item_code);
                    if ($qoh <= 0)
                    {
                        global $Refs;

                        //Chaitanya : Post a journal entry
                        $id = get_next_trans_no(ST_JOURNAL);
                        $ref = $Refs->get_next(ST_JOURNAL);
                        $stock_id = $entered_grn->item_code;
                        $stock_gl_code = get_stock_gl_code($stock_id);
                        $memo = _("Supplier invoice adjustment for zero inventory of ") . $stock_id .
                            " " . _("Invoice") . " " . $supp_trans->reference;
                        //Reverse the inventory effect if $qoh <=0
                        add_gl_trans_std_cost(ST_JOURNAL, $id, $date_, $stock_gl_code["inventory_account"],
                            $stock_gl_code['dimension_id'], $stock_gl_code['dimension2_id'], $memo, -$entered_grn->
                            this_quantity_inv * $diff);
                        //GL Posting to inventory adjustment account
                        add_gl_trans_std_cost(ST_JOURNAL, $id, $date_, $stock_gl_code["adjustment_account"],
                            $stock_gl_code['dimension_id'], $stock_gl_code['dimension2_id'], $memo, $entered_grn->
                            this_quantity_inv * $diff);

                        add_audit_trail(ST_JOURNAL, $id, $date_);
                        add_comments(ST_JOURNAL, $id, $date_, $memo);
                        $Refs->save(ST_JOURNAL, $id, $ref);
                    }

                    /*$qoh = get_qoh_on_date($entered_grn->item_code);
                    if ($qoh <= 0)
                    {
                    $memo = "Diff. in cost: ".$diff;
                    //Reverse the inventory effect if $qoh <=0
                    add_gl_trans_supplier($trans_type, $invoice_id, $date_, 
                    $stock_gl_code["inventory_account"],
                    $stock_gl_code['dimension_id'], $stock_gl_code['dimension2_id'],
                    -$entered_grn->this_quantity_inv * $diff, $supp_trans->supplier_id, "", null, $memo);
                    //GL Posting to inventory adjustment account
                    add_gl_trans_supplier($trans_type, $invoice_id, $date_, 
                    $stock_gl_code["adjustment_account"],
                    $stock_gl_code['dimension_id'], $stock_gl_code['dimension2_id'],
                    $entered_grn->this_quantity_inv * $diff, $supp_trans->supplier_id, "", null, $memo);						
                    }*/

                    //add_gl_trans($trans_type, $invoice_id, $date_,	$stock_gl_code["cogs_account"],
                    //	0, 0, 'GRN Provision', -$diff_amt, null, null, null,
                    //	"The general ledger transaction could not be added for the GRN of the inventory item");
                }
            }
            // added 2008-12-08 Joe Hunt. Update the purchase data table
            add_or_update_purchase_data($supp_trans->supplier_id, $entered_grn->item_code, $entered_grn->
                chg_price);
            /*$deliveries = get_deliveries_between($entered_grn->item_code, $old_date, Today()); // extend the period, if invoice is before any deliveries.
            if ($deliveries[0] != 0) // have deliveries been done during the period?
            {
            $deliveries[1] /= $deliveries[0];
            $amt = ($mat_cost - $deliveries[1]) * $deliveries[0]; // $amt in home currency
            if ($amt != 0.0)
            {
            $_s = $entered_grn->item_code;
            $_d = $deliveries[0];
            $_od = $old_date;
            $_cd = $mat_cost - $deliveries[1];
            $memo = _("Cost difference adjustment for $_s. $_d items delivered since $_od. The cost difference is $_cd");
            add_gl_trans($trans_type, $invoice_id, $date_,	$stock_gl_code["cogs_account"],
            $stock_gl_code['dimension_id'], $stock_gl_code['dimension2_id'], $memo,
            $amt, null, null, null,
            "The general ledger transaction could not be added for the price variance of the inventory item");
            add_gl_trans($trans_type, $invoice_id, $date_,	$iv_act,
            0, 0, $memo, -$amt, null, null, null,
            "The general ledger transaction could not be added for the price variance of the inventory item");
            }		
            update_stock_move_pid(ST_CUSTDELIVERY, $entered_grn->item_code, $old_date, $date_, 0, $mat_cost);
            } 
            if (is_inventory_item($entered_grn->item_code))
            update_stock_move_pid(ST_SUPPRECEIVE, $entered_grn->item_code, $old_date, $old_date, $supp_trans->supplier_id, $mat_cost);
            */
            //}
        }
        // ----------------------------------------------------------------------

        add_supp_invoice_item($trans_type, $invoice_id, $entered_grn->item_code, $entered_grn->
            item_description, 0, $entered_grn->chg_price, $line_tax, $entered_grn->
            this_quantity_inv, $entered_grn->id, $entered_grn->po_detail_item, "");
    }
    /* end of GRN postings */
    /* Now the TAX account */
    $taxes = $supp_trans->get_taxes($supp_trans->tax_group_id, 0, false); // 2009.08-18 Joe Hunt. We have already got the gl lines
    foreach ($taxes as $taxitem)
    {
        if ($taxitem['Net'] != 0)
        {

            if ($trans_type == ST_SUPPCREDIT)
            {
                $taxitem['Net'] = -$taxitem['Net'];
                $taxitem['Value'] = -$taxitem['Value'];
            }
            add_trans_tax_details($trans_type, $invoice_id, $taxitem['tax_type_id'], $taxitem['rate'],
                $supp_trans->tax_included, $taxitem['Value'], $taxitem['Net'], $ex_rate, $date_,
                $supp_trans->supp_reference);

            if ($trans_type == ST_SUPPCREDIT)
                $taxitem['Value'] = -$taxitem['Value'];
            $total += add_gl_trans_supplier($trans_type, $invoice_id, $date_, $taxitem['purchasing_gl_code'],
                0, 0, $taxitem['Value'], $supp_trans->supplier_id,
                "A general ledger transaction for the tax amount could not be added");
        }
    }

    //WANTED start
    
    if ($trans_type == ST_PURCHORDER)
    {
        //todo : add gl untuk hutang
        $myrow = get_company_prefs();
        $total += add_gl_trans_supplier($trans_type, $invoice_id, $date_, $myrow["creditors_act"],
            0, 0, -($invoice_items_total + $item_added_tax + $supp_trans->ov_discount), $supp_trans->
            supplier_id, "A general ledger transaction for the tax amount could not be added");

    } elseif ($trans_type == ST_SUPPINVOICE)
    {
        $total += add_gl_trans_supplier($trans_type, $invoice_id, $date_,
            get_account_code_bank($supp_trans->kode_bank), 0, 0, -($invoice_items_total + $item_added_tax +
            $supp_trans->ov_discount), $supp_trans->supplier_id,
            "The general ledger transaction for the control total could not be added");
        
        add_bank_trans($trans_type, $invoice_id, $supp_trans->kode_bank, $supp_trans->
            reference, $date_, -($invoice_items_total + $item_added_tax + $supp_trans->
            ov_discount), PT_SUPPLIER, $supp_trans->supplier_id, "",
            "Could not add the supplier payment bank transaction");
    }    
        //WANTED end
    /*Post a balance post if $total != 0 */
    add_gl_balance($trans_type, $invoice_id, $date_, -$total, PT_SUPPLIER, $supp_trans->
        supplier_id);

    add_comments($trans_type, $invoice_id, $date_, $supp_trans->Comments);

    $Refs->save($trans_type, $invoice_id, $supp_trans->reference);

    if ($invoice_no != 0)
    {
        $invoice_alloc_balance = get_supp_trans_allocation_balance(ST_SUPPINVOICE, $invoice_no);
        if ($invoice_alloc_balance > 0)
        { //the invoice is not already fully allocated

            $trans = get_supp_trans($invoice_no, ST_SUPPINVOICE);
            $total = $trans['Total'];

            $allocate_amount = ($invoice_alloc_balance > $total) ? $total : $invoice_alloc_balance;
            /*Now insert the allocation record if > 0 */
            if ($allocate_amount != 0)
            {
                update_supp_trans_allocation(ST_SUPPINVOICE, $invoice_no, $allocate_amount);
                update_supp_trans_allocation(ST_SUPPCREDIT, $invoice_id, $allocate_amount); // ***
                add_supp_allocation($allocate_amount, ST_SUPPCREDIT, $invoice_id, ST_SUPPINVOICE,
                    $invoice_no, $date_);
                // Exchange Variations Joe Hunt 2008-09-20 ////////////////////////////////////////

                exchange_variation(ST_SUPPCREDIT, $invoice_id, ST_SUPPINVOICE, $invoice_no, $date_,
                    $allocate_amount, PT_SUPPLIER);

                ///////////////////////////////////////////////////////////////////////////
            }
        }
    }

    $supp_trans->trans_no = $invoice_id;


    hook_db_postwrite($supp_trans, $supp_trans->trans_type);
    commit_transaction();

    return $invoice_id;
}

//----------------------------------------------------------------------------------------

// get all the invoices/credits for a given PO - quite long route to get there !

function get_po_invoices_credits($po_number)
{
    $sql = "SELECT DISTINCT " . TB_PREF . "supp_trans.trans_no, " . TB_PREF .
        "supp_trans.type,
		ov_amount+ov_discount+ov_gst AS Total,
		" . TB_PREF . "supp_trans.tran_date
		FROM " . TB_PREF . "supp_trans, " . TB_PREF . "supp_invoice_items, " . TB_PREF .
        "purch_order_details, " . TB_PREF . "purch_orders
		WHERE " . TB_PREF . "supp_invoice_items.supp_trans_no = " . TB_PREF .
        "supp_trans.trans_no
		AND " . TB_PREF . "supp_invoice_items.supp_trans_type = " . TB_PREF .
        "supp_trans.type
		AND " . TB_PREF . "supp_invoice_items.po_detail_item_id = " . TB_PREF .
        "purch_order_details.po_detail_item
		AND " . TB_PREF . "purch_orders.supplier_id = " . TB_PREF .
        "supp_trans.supplier_id
		AND " . TB_PREF . "purch_orders.order_no = " . TB_PREF .
        "purch_order_details.order_no
		AND " . TB_PREF . "purch_order_details.order_no = " . db_escape($po_number);

    return db_query($sql, "The invoices/credits for the po $po_number could not be retreived");
}

//----------------------------------------------------------------------------------------

function read_supp_invoice($trans_no, $trans_type, &$supp_trans)
{
    $sql = "SELECT " . TB_PREF . "supp_trans.*, supp_name FROM " . TB_PREF .
        "supp_trans," . TB_PREF . "suppliers
		WHERE trans_no = " . db_escape($trans_no) . " AND type = " . db_escape($trans_type) .
        "
		AND " . TB_PREF . "suppliers.supplier_id=" . TB_PREF .
        "supp_trans.supplier_id";
    $result = db_query($sql, "Cannot retreive a supplier transaction");

    if (db_num_rows($result) == 1)
    {
        $trans_row = db_fetch($result);

        $supp_trans->supplier_id = $trans_row["supplier_id"];
        $supp_trans->supplier_name = $trans_row["supp_name"];
        $supp_trans->tran_date = sql2date($trans_row["tran_date"]);
        $supp_trans->due_date = sql2date($trans_row["due_date"]);
        $supp_trans->Comments = get_comments_string($trans_type, $trans_no);
        $supp_trans->reference = $trans_row["reference"];
        $supp_trans->supp_reference = $trans_row["supp_reference"];
        $supp_trans->ov_amount = $trans_row["ov_amount"];
        $supp_trans->ov_discount = $trans_row["ov_discount"];
        $supp_trans->ov_gst = $trans_row["ov_gst"];
        $supp_trans->tax_included = $trans_row["tax_included"];

        $id = $trans_row["trans_no"];

        $result = get_supp_invoice_items($trans_type, $id);

        if (db_num_rows($result) > 0)
        {

            while ($details_row = db_fetch($result))
            {

                if ($details_row["gl_code"] == 0)
                {
                    $supp_trans->add_grn_to_trans($details_row["grn_item_id"], $details_row["po_detail_item_id"],
                        $details_row["stock_id"], $details_row["description"], 0, 0, $details_row["quantity"],
                        0, $details_row["FullUnitPrice"], 0, 0);
                } else
                {
                    $supp_trans->add_gl_codes_to_trans($details_row["gl_code"], get_gl_account_name
                        ($details_row["gl_code"]), 0, 0, $details_row["FullUnitPrice"], $details_row["memo_"]);
                }
            }
        } else
        {
            return display_db_error("Invalid supptrans details for supptrans number : $trans_no and type : $trans_type",
                $sql, true);
        }

    } else
    {
        return display_db_error("Invalid supptrans number : $trans_no and type : $trans_type",
            $sql, true);
    }
}

//----------------------------------------------------------------------------------------

function get_matching_invoice_item($stock_id, $po_item_id)
{
    $sql = "SELECT *, tran_date FROM " . TB_PREF . "supp_invoice_items, " . TB_PREF .
        "supp_trans
		WHERE supp_trans_type = " . ST_SUPPINVOICE . " AND stock_id = " . db_escape($stock_id) .
        " AND po_detail_item_id = " . db_escape($po_item_id) . "
		AND supp_trans_no = trans_no";
    $result = db_query($sql, "Cannot retreive supplier transaction detail records");
    return db_fetch($result);
}

function void_supp_invoice($type, $type_no)
{
    begin_transaction();

    hook_db_prevoid($type, $type_no);
    $trans = get_supp_trans($type_no, $type);

    void_bank_trans($type, $type_no, true);

    void_gl_trans($type, $type_no, true);

    void_supp_allocations($type, $type_no);

    void_supp_trans($type, $type_no);

    $result = get_supp_invoice_items($type, $type_no);

    // now remove this invoice/credit from any GRNs/POs that it's related to
    if (db_num_rows($result) > 0)
    {
        $date_ = Today();
        while ($details_row = db_fetch($result))
        {
            if ((int)$details_row["grn_item_id"] > 0) // it can be empty for GL items
            {
                // Changed 2008-10-17 by Joe Hunt to get the avg. material cost updated
                $old = update_supp_received_items_for_invoice($details_row["grn_item_id"], $details_row["po_detail_item_id"],
                    -$details_row["quantity"], $details_row["FullUnitPrice"]);

                //$diff = $details_row["FullUnitPrice"] - $old[2];
                $old_date = sql2date($old[1]);

                $batch = get_grn_batch_from_item($details_row["grn_item_id"]);
                $grn = get_grn_batch($batch);
                if ($type == ST_SUPPCREDIT)
                    // credit note 2009-06-14 Joe Hunt Must restore the po and grn
                {
                    $match = get_matching_invoice_item($details_row["stock_id"], $details_row["po_detail_item_id"]);

                    //Chaitanya : Skipped costing block & handle in void_stock_move
                    // We must get the corresponding invoice item to check for price chg.
                    /*if ($match !== false)
                    $mat_cost = update_average_material_cost($grn["supplier_id"], $details_row["stock_id"],  
                    $match["unit_price"], -$details_row["quantity"], sql2date($match['tran_date']), $match['tran_date'] !== $trans['tran_date']);
                    else		
                    $mat_cost = update_average_material_cost($grn["supplier_id"], $details_row["stock_id"],  
                    $details_row["FullUnitPrice"], -$details_row["quantity"], $old_date, $old[1] !== $trans['tran_date']);*/

                    $sql = "UPDATE " . TB_PREF . "purch_order_details
        				SET quantity_ordered = quantity_ordered + " . -$details_row["quantity"] .
                        ", ";
                    if ($match !== false)
                        $sql .= "act_price=" . $match['unit_price'] . ", ";
                    $sql .= "quantity_received = quantity_received + " . -$details_row["quantity"] .
                        "
    				    WHERE po_detail_item = " . $details_row["po_detail_item_id"];
                    db_query($sql, "a purchase order details record could not be updated. This receipt of goods has not been processed ");
                    $sql = "UPDATE " . TB_PREF . "grn_items SET qty_recd=qty_recd+" . -$details_row["quantity"] .
                        "
						WHERE id=" . $details_row["grn_item_id"];
                    db_query($sql);
                } else
                {
                    $diff = get_diff_in_home_currency($grn["supplier_id"], $old_date, sql2date($trans['tran_date']),
                        $old[2], $details_row["FullUnitPrice"]);
                    // Only adjust the avg for the diff
                    $mat_cost = update_average_material_cost(null, $details_row["stock_id"], $diff,
                        -$details_row["quantity"], $old_date, true);

                    //Chaitanya : Reverse effect
                    //If QOH is 0 or negative then update_average_material_cost will be skipped
                    //Thus difference in PO and Supp Invoice should be handled separately

                    $qoh = get_qoh_on_date($details_row["stock_id"]);
                    if ($diff * $details_row["quantity"] != 0 && $qoh <= 0)
                    {
                        global $Refs;

                        //Chaitanya : Post a journal entry
                        $id = get_next_trans_no(ST_JOURNAL);
                        $ref = $Refs->get_next(ST_JOURNAL);
                        $stock_id = $details_row["stock_id"];
                        $stock_gl_code = get_stock_gl_code($stock_id);
                        $memo = "Reversing Supplier invoice adjustment for zero inventory of " . $stock_id .
                            " Invoice: " . $trans['reference'];
                        //Reverse the inventory effect if $qoh <=0
                        add_gl_trans_std_cost(ST_JOURNAL, $id, $old_date, $stock_gl_code["inventory_account"],
                            $stock_gl_code['dimension_id'], $stock_gl_code['dimension2_id'], $memo, $details_row["quantity"] *
                            $diff);
                        //GL Posting to inventory adjustment account
                        add_gl_trans_std_cost(ST_JOURNAL, $id, $old_date, $stock_gl_code["adjustment_account"],
                            $stock_gl_code['dimension_id'], $stock_gl_code['dimension2_id'], $memo, -$details_row["quantity"] *
                            $diff);

                        add_audit_trail(ST_JOURNAL, $id, $old_date);
                        add_comments(ST_JOURNAL, $id, $old_date, $memo);
                        $Refs->save(ST_JOURNAL, $id, $ref);
                    }
                }
                /*$deliveries = get_deliveries_between($details_row["stock_id"], $old_date, $date_);
                if ($deliveries[0] != 0) // have deliveries been done during the period?
                {
                update_stock_move_pid(ST_CUSTDELIVERY, $details_row["stock_id"], $old_date, $date_, 0, $mat_cost);
                }
                update_stock_move_pid(ST_SUPPRECEIVE, $details_row["stock_id"], $old_date, $old_date, $grn['supplier_id'], $mat_cost);
                */
            }
        }
    }

    if ($type == ST_SUPPCREDIT) // void the credits in stock moves

        void_stock_move($type, $type_no);
    void_supp_invoice_items($type, $type_no);
    void_trans_tax_details($type, $type_no);

    commit_transaction();
}

//----------------------------------------------------------------------------------------
function get_gl_account_info($acc)
{
    $sql = "SELECT account_code, account_name FROM " . TB_PREF .
        "chart_master WHERE account_code=" . db_escape($acc);
    return db_query($sql, "get account information");
}

function is_reference_already_there($supplier_id, $supp_reference, $trans_no = 0)
{
    $sql = "SELECT COUNT(*) FROM " . TB_PREF . "supp_trans WHERE supplier_id=" .
        db_escape($supplier_id) . " AND supp_reference=" . db_escape($supp_reference) .
        " AND ov_amount!=0"; // ignore voided invoice references
    if ($trans_no)
        $sql .= " AND trans_no!=$trans_no";
    $result = db_query($sql,
        "The sql to check for the previous entry of the same invoice failed");

    $myrow = db_fetch_row($result);
    return $myrow[0] > 0;
}

function remove_not_invoice_item($id)
{
    begin_transaction();

    $myrow = get_grn_item_detail($id);

    $grn = get_grn_batch($myrow['grn_batch_id']);

    $sql = "UPDATE " . TB_PREF . "purch_order_details
		SET quantity_received = qty_invoiced, quantity_ordered = qty_invoiced WHERE po_detail_item = " .
        $myrow["po_detail_item"];
    db_query($sql, "The quantity invoiced of the purchase order line could not be updated");

    $sql = "UPDATE " . TB_PREF . "grn_items
		SET qty_recd = quantity_inv WHERE id = " . $myrow["id"];
    db_query($sql, "The quantity invoiced off the items received record could not be updated");

    update_average_material_cost($grn["supplier_id"], $myrow["item_code"], $myrow["unit_price"],
        -$myrow["QtyOstdg"], Today());

    add_stock_move(ST_SUPPRECEIVE, $myrow["item_code"], $myrow['grn_batch_id'], $grn['loc_code'],
        sql2date($grn["delivery_date"]), "", -$myrow["QtyOstdg"], $myrow['std_cost_unit'],
        $grn["supplier_id"], 1, $myrow['unit_price']);

    $clearing_act = get_company_pref('grn_clearing_act');
    if ($clearing_act)
    { // otherwise GRN clearing account is not used
        if (is_inventory_item($myrow['item_code']))
        {
            $total = 0;
            $stock_gl_code = get_stock_gl_code($myrow['item_code']);
            $date = sql2date($grn["delivery_date"]);
            $total += add_gl_trans_supplier(ST_SUPPRECEIVE, $myrow['grn_batch_id'], $date, $stock_gl_code["inventory_account"],
                $stock_gl_code['dimension_id'], $stock_gl_code['dimension2_id'], -$myrow['QtyOstdg'] *
                $myrow['unit_price'], $grn["supplier_id"], "", 0, _("GRN Removal"));
            $total += add_gl_trans_supplier(ST_SUPPRECEIVE, $myrow['grn_batch_id'], $date, $clearing_act,
                0, 0, -$total, null, "", 0, _("GRN Removal"));
        }
    }

    commit_transaction();
}

?>
